Refractory bricks are usually dried in a ________________ dryer?
Correct answer: B. Tunnel
- A. Tray
- B. Tunnel
- C. Conveyor
- D. Festoon
Explanation
Refractory bricks are bulky and require controlled, gradual drying, for which a tunnel dryer provides continuous passage through heated zones. Tray dryers are more suitable for smaller batches or materials that are easier to handle.
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